Car heater



R. F. MULLEN ErAL i .March 13, 1934.

' CAR HEATER Filed Jan. 16. 1932 maneh&

CL'ee Piatented Mar. i3, 1934 CAR HEATER Raymond F. Mulien and Thomas L.Lee, Rochester, N.. 'ili, ossignors to General Motors Corporation,Detroit, Mirah., a corporation of Delaware Application January 1e, 1932,Serial No. 537,104

a emma. (omar-12.3)

This invention relates to heaters and has particular reference to aheater of the type which uses the hot water of the water circulatingsystem of the engine of automotive vehicles.

s3 The particular novelty of the invention resides in positioning theheating unit under the front seat of the vehicle and between the seatand the floor board so that it is out of the way and has substantiallyno portion which projects below the w floor board.

on the drawing: Figure 1 shows an automotive vehicle in outline with theheating unit applied.

Figure 2 is an enlarged sectional view of the i5 front seat with theheating unit in position.

Figure 3 is an enlarged detailed plan View of the heating unit under theseat with parts broken away and shown in section. Referring to thedrawing, the numeral 2 indi- 2e cates an automotive vehicle as a whole.The vehicle has the eng-ine i with the water circulating system 6including the water pump 8. The dashboard is indicated at i0, toe boardat i2 and the floor at 14. The rear seat is indicated at 16 and thefront seat at i3. The parts so far described are conventional and per seform no part of the invention` The particular novelty of the inventionresides in the placing of the heating unit, indicated as a ao whole at20, under the front seat ie and between the seat and floor 14, as bestshown in Figure 2.

In prior instaliations of heating units which use the hot water or theengine cooling system. the

units invariahly have been applied to the clashboard and as they take upsome room, it

has been found that they are in the way of the feet of the passenger atthe side oi the seat where the heating unit is installed. This isparticularly objectionable in 'warm weather when 4@ there is no use forthe heater. In the present invention, the heater is mounted below theseat where it is out of the way at ail times and in no way interfereswith the comfort of the passengers.

By referring to Figure 2, it will be noted that 4 the seat 1e issupported on the pan 22 secured to the floor 1e and having the uprightportions 24 on which the seat directly rests. The heating unit comprisesthe honeycomb heating unit 26 which receives water from the pipe 28 anddelivers the water from the pipe 30 back to the cooling system.

A fan or blower 32 operated by an electric motor 34 draws the air fromthe vehicle through openinge in the support 24, as indicated by thearrows in Figure 2, through the honeycomh structure 26 to take up theheat from the heating unit.

' stantially no projecting portion which extends he The heated air isdelivered by the blower into the passage 36 for delivery to the frontcompartent, as indicated by the arrows A in Figure 3, end to the passage38 for delivery to the rear compert ment, as indicated by the arrows Bin Figure ii. By referring to Figure 2, it will be noted thet theheating unit is attached to the seat pan hr means of the boits and nuts40, suitable her blocks (not shown) being used to obtain proper noiseinsulation. It will be noted that the entire heating unit, with theexception of the motor 34, is contained within the space between thesent and the floor board. There is, therefore, suh= low the floor boardor into the vehicle and the heating unit is out of the way at all times.

The motor 34 ,and blower 32 are shown held in a vertical position in ahousing portion 42 of the heater casing et but, if desired, the blowerand motor may be positioned horizontally. V

instead of the hot water from the engine, it is within the scope of theinvention to pane stem through pipes 28 and 30 through the heater, thesteam being generated from the water of the en= gine cooling system suchas hy placing a U-tuhe in the exhaust pipe at a suitahlepoint.

We claim:

1. In combination with an automotive vehicle having a seat and an enginewith a water circu= lating system, a heat interchanger positionedlilitder the front vehicle seat and between the seat and the floor,infiow and outow connections between the water circulating system andthe heat inter= changer, means within the space between the seat and thefloor. for drawing air from the vehicle @ii through the heater, andmeans for delivering heated air from the' heat interchanger to the frontand rear of the seat.

2. In combination with an automotive vehicle having e seat, a panbeneath the seat and upon t5 which the` seat rests, a heating deviceunder the seat and between the seat and the pan, said device mounted inthe pan and including means to draw air from the vehicle into thedevice, means for delivering heated air from the device wii into thevehicle.

RAYMOND F. THOMAS L. LEE.

